Works the same as volume_rot_x. It calculates the volume of a rotational body by rotating a the portion of a function graph around the y-axis. The function graph is integrated from a lower to an upper boundary.

Expects a Math::Symbolic tree or a string to be parsed as such as first argument. Second argument must be the lower boundary, third must be the upper parameter boundary.

Calculates the volume of a rotational body by rotating a portion of a function graph around an arbitrary axis in R^2. The function graph is integrated from a lower to an upper boundary. volume_rot_arb takes named arguments: